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Convolutional neural network (CNN) based methods have achieved great successes in medical image segmentation, but their capability to learn global representations is still limited due to using small effective receptive fields of convolution…

计算机视觉与模式识别 · 计算机科学 2022-11-17 Pengfei Gu , Yejia Zhang , Chaoli Wang , Danny Z. Chen

This paper proposes ShapeShifter, a new 3D generative model that learns to synthesize shape variations based on a single reference model. While generative methods for 3D objects have recently attracted much attention, current techniques…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Nissim Maruani , Wang Yifan , Matthew Fisher , Pierre Alliez , Mathieu Desbrun

Transformer, the model of choice for natural language processing, has drawn scant attention from the medical imaging community. Given the ability to exploit long-term dependencies, transformers are promising to help atypical convolutional…

计算机视觉与模式识别 · 计算机科学 2022-02-07 Hong-Yu Zhou , Jiansen Guo , Yinghao Zhang , Lequan Yu , Liansheng Wang , Yizhou Yu

Image fusion is a technique to integrate information from multiple source images with complementary information to improve the richness of a single image. Due to insufficient task-specific training data and corresponding ground truth, most…

计算机视觉与模式识别 · 计算机科学 2022-01-20 Linhao Qu , Shaolei Liu , Manning Wang , Shiman Li , Siqi Yin , Qin Qiao , Zhijian Song

With the advent of affordable depth sensors, 3D capture becomes more and more ubiquitous and already has made its way into commercial products. Yet, capturing the geometry or complete shapes of everyday objects using scanning devices (e.g.…

计算机视觉与模式识别 · 计算机科学 2016-09-13 Abhishek Sharma , Oliver Grau , Mario Fritz

3D reconstruction of medical imaging from 2D images has become an increasingly interesting topic with the development of deep learning models in recent years. Previous studies in 3D reconstruction from limited X-ray images mainly rely on…

图像与视频处理 · 电气工程与系统科学 2023-09-06 Weinan Song , Haoxin Zheng , Dezhan Tu , Chengwen Liang , Lei He

The adoption of Vision Transformers (ViTs) based architectures represents a significant advancement in 3D Medical Image (MI) segmentation, surpassing traditional Convolutional Neural Network (CNN) models by enhancing global contextual…

计算机视觉与模式识别 · 计算机科学 2024-04-25 Shehan Perera , Pouyan Navard , Alper Yilmaz

Existing works on single-image 3D reconstruction mainly focus on shape recovery. In this work, we study a new problem, that is, simultaneously recovering 3D shape and surface color from a single image, namely "colorful 3D reconstruction".…

计算机视觉与模式识别 · 计算机科学 2018-04-18 Yongbin Sun , Ziwei Liu , Yue Wang , Sanjay E. Sarma

Learning object-centric representations from unsupervised videos is challenging. Unlike most previous approaches that focus on decomposing 2D images, we present a 3D generative model named DynaVol-S for dynamic scenes that enables…

计算机视觉与模式识别 · 计算机科学 2025-02-17 Yanpeng Zhao , Yiwei Hao , Siyu Gao , Yunbo Wang , Xiaokang Yang

Currently, this paper is under review in IEEE. Transformers have intrigued the vision research community with their state-of-the-art performance in natural language processing. With their superior performance, transformers have found their…

计算机视觉与模式识别 · 计算机科学 2022-10-05 Preetam Ghosh , Swalpa Kumar Roy , Bikram Koirala , Behnood Rasti , Paul Scheunders

Recently introduced implicit field representations offer an effective way of generating 3D object shapes. They leverage implicit decoder trained to take a 3D point coordinate concatenated with a shape encoding and to output a value which…

计算机视觉与模式识别 · 计算机科学 2021-10-13 Magdalena Proszewska , Marcin Mazur , Tomasz Trzciński , Przemysław Spurek

In this work, we introduce SPFormer, a novel Vision Transformer enhanced by superpixel representation. Addressing the limitations of traditional Vision Transformers' fixed-size, non-adaptive patch partitioning, SPFormer employs superpixels…

计算机视觉与模式识别 · 计算机科学 2024-01-08 Jieru Mei , Liang-Chieh Chen , Alan Yuille , Cihang Xie

We present XFormer, a novel human mesh and motion capture method that achieves real-time performance on consumer CPUs given only monocular images as input. The proposed network architecture contains two branches: a keypoint branch that…

计算机视觉与模式识别 · 计算机科学 2023-05-19 Lihui Qian , Xintong Han , Faqiang Wang , Hongyu Liu , Haoye Dong , Zhiwen Li , Huawei Wei , Zhe Lin , Cheng-Bin Jin

Solving image-to-3D from a single view is an ill-posed problem, and current neural reconstruction methods addressing it through diffusion models still rely on scene-specific optimization, constraining their generalization capability. To…

计算机视觉与模式识别 · 计算机科学 2024-01-09 Christian Simon , Sen He , Juan-Manuel Perez-Rua , Mengmeng Xu , Amine Benhalloum , Tao Xiang

We present Voxel Transformer (VoTr), a novel and effective voxel-based Transformer backbone for 3D object detection from point clouds. Conventional 3D convolutional backbones in voxel-based 3D detectors cannot efficiently capture large…

计算机视觉与模式识别 · 计算机科学 2021-09-14 Jiageng Mao , Yujing Xue , Minzhe Niu , Haoyue Bai , Jiashi Feng , Xiaodan Liang , Hang Xu , Chunjing Xu

Open-world 3D reconstruction models have recently garnered significant attention. However, without sufficient 3D inductive bias, existing methods typically entail expensive training costs and struggle to extract high-quality 3D meshes. In…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Minghua Liu , Chong Zeng , Xinyue Wei , Ruoxi Shi , Linghao Chen , Chao Xu , Mengqi Zhang , Zhaoning Wang , Xiaoshuai Zhang , Isabella Liu , Hongzhi Wu , Hao Su

Generalizable neural surface reconstruction has become a compelling technique to reconstruct from few images without per-scene optimization, where dense 3D feature volume has proven effective as a global representation of scenes. However,…

计算机视觉与模式识别 · 计算机科学 2025-07-09 Aoxiang Fan , Corentin Dumery , Nicolas Talabot , Hieu Le , Pascal Fua

One-shot voice conversion(VC) aims to change the timbre of any source speech to match that of the target speaker with only one speech sample. Existing style transfer-based VC methods relied on speech representation disentanglement and…

声音 · 计算机科学 2024-11-26 Wenhan Yao , Zedong Xing , Xiarun Chen , Jia Liu , Yongqiang He , Weiping Wen

Neural shape representation generally refers to representing 3D geometry using neural networks, e.g., computing a signed distance or occupancy value at a specific spatial position. In this paper we present a neural-network architecture…

机器学习 · 计算机科学 2024-08-22 Stefan Rhys Jeske , Jonathan Klein , Dominik L. Michels , Jan Bender

Constructing a compressed latent space through a variational autoencoder (VAE) is the key for efficient 3D diffusion models. This paper introduces COD-VAE that encodes 3D shapes into a COmpact set of 1D latent vectors without sacrificing…

计算机视觉与模式识别 · 计算机科学 2025-07-29 In Cho , Youngbeom Yoo , Subin Jeon , Seon Joo Kim